EP1500087A4 - On-line parametric histogram normalization for noise robust speech recognition - Google Patents

On-line parametric histogram normalization for noise robust speech recognition

Info

Publication number
EP1500087A4
EP1500087A4 EP03718984A EP03718984A EP1500087A4 EP 1500087 A4 EP1500087 A4 EP 1500087A4 EP 03718984 A EP03718984 A EP 03718984A EP 03718984 A EP03718984 A EP 03718984A EP 1500087 A4 EP1500087 A4 EP 1500087A4
Authority
EP
European Patent Office
Prior art keywords
speech recognition
robust speech
histogram normalization
noise robust
spectral coefficients
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03718984A
Other languages
German (de)
French (fr)
Other versions
EP1500087B1 (en
EP1500087A1 (en
Inventor
Hemmo Haverinen
Imre Kiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Publication of EP1500087A1 publication Critical patent/EP1500087A1/en
Publication of EP1500087A4 publication Critical patent/EP1500087A4/en
Application granted granted Critical
Publication of EP1500087B1 publication Critical patent/EP1500087B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00Speech recognition
    • G10L15/20Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00Speech recognition
    • G10L15/02Feature extraction for speech recognition; Selection of recognition unit
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)
  • Noise Elimination (AREA)
  • Complex Calculations (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Machine Translation (AREA)

Abstract

A method for improving noise robustness in speech recognition, wherein a front-end is used for extracting speech feature from an input speech and for providing a plurality of scaled spectral coefficients. The histogram of the scaled spectral coefficients is normalized to the histogram of a training set using Gaussian approximations. The normalized spectral coefficients are then converted into a set of cepstrum coefficients by a decorrelation module and further subjected to ceptral domain feature-vector normalization.
EP03718984A 2002-04-30 2003-04-28 On-line parametric histogram normalization for noise robust speech recognition Expired - Lifetime EP1500087B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US136039 2002-04-30
US10/136,039 US7197456B2 (en) 2002-04-30 2002-04-30 On-line parametric histogram normalization for noise robust speech recognition
PCT/IB2003/001621 WO2003094154A1 (en) 2002-04-30 2003-04-28 On-line parametric histogram normalization for noise robust speech recognition

Publications (3)

Publication Number Publication Date
EP1500087A1 EP1500087A1 (en) 2005-01-26
EP1500087A4 true EP1500087A4 (en) 2005-05-18
EP1500087B1 EP1500087B1 (en) 2007-05-30

Family

ID=29249598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03718984A Expired - Lifetime EP1500087B1 (en) 2002-04-30 2003-04-28 On-line parametric histogram normalization for noise robust speech recognition

Country Status (7)

Country Link
US (1) US7197456B2 (en)
EP (1) EP1500087B1 (en)
CN (1) CN1650349A (en)
AT (1) ATE363712T1 (en)
AU (1) AU2003223017A1 (en)
DE (1) DE60314128T2 (en)
WO (1) WO2003094154A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826513B1 (en) * 2002-11-29 2004-11-30 Council Of Scientific & Industrial Research Method and apparatus for online identification of safe operation and advance detection of unsafe operation of a system or process
TWI223791B (en) * 2003-04-14 2004-11-11 Ind Tech Res Inst Method and system for utterance verification
CN101228577B (en) * 2004-01-12 2011-11-23 语音信号技术公司 Automatic speech recognition channel normalization method and system
US7707029B2 (en) * 2005-02-08 2010-04-27 Microsoft Corporation Training wideband acoustic models in the cepstral domain using mixed-bandwidth training data for speech recognition
US7729909B2 (en) * 2005-03-04 2010-06-01 Panasonic Corporation Block-diagonal covariance joint subspace tying and model compensation for noise robust automatic speech recognition
KR101127184B1 (en) 2006-02-06 2012-03-21 삼성전자주식회사 Method and apparatus for normalizing voice feature vector by delta histogram
KR100717385B1 (en) * 2006-02-09 2007-05-11 삼성전자주식회사 Recognition confidence measuring by lexical distance between candidates
KR100717401B1 (en) * 2006-03-02 2007-05-11 삼성전자주식회사 Method and apparatus for normalizing voice feature vector by backward cumulative histogram
US8355913B2 (en) * 2006-11-03 2013-01-15 Nokia Corporation Speech recognition with adjustable timeout period
KR100919223B1 (en) * 2007-09-19 2009-09-28 한국전자통신연구원 The method and apparatus for speech recognition using uncertainty information in noise environment
US8180718B2 (en) * 2008-01-14 2012-05-15 Hewlett-Packard Development Company, L.P. Engine for performing root cause and effect analysis
US8374854B2 (en) * 2008-03-28 2013-02-12 Southern Methodist University Spatio-temporal speech enhancement technique based on generalized eigenvalue decomposition
JP5573627B2 (en) * 2010-11-22 2014-08-20 富士通株式会社 Optical digital coherent receiver
CN102290047B (en) * 2011-09-22 2012-12-12 哈尔滨工业大学 Robust speech characteristic extraction method based on sparse decomposition and reconfiguration
US20130080165A1 (en) * 2011-09-24 2013-03-28 Microsoft Corporation Model Based Online Normalization of Feature Distribution for Noise Robust Speech Recognition
US8768695B2 (en) * 2012-06-13 2014-07-01 Nuance Communications, Inc. Channel normalization using recognition feedback
EP2877992A1 (en) * 2012-07-24 2015-06-03 Nuance Communications, Inc. Feature normalization inputs to front end processing for automatic speech recognition
CN105139855A (en) * 2014-05-29 2015-12-09 哈尔滨理工大学 Speaker identification method with two-stage sparse decomposition and device
US9886948B1 (en) * 2015-01-05 2018-02-06 Amazon Technologies, Inc. Neural network processing of multiple feature streams using max pooling and restricted connectivity
CN105068515B (en) * 2015-07-16 2017-08-25 华南理工大学 A kind of intelligent home device sound control method based on self-learning algorithm
KR102413692B1 (en) 2015-07-24 2022-06-27 삼성전자주식회사 Apparatus and method for caculating acoustic score for speech recognition, speech recognition apparatus and method, and electronic device
KR102192678B1 (en) * 2015-10-16 2020-12-17 삼성전자주식회사 Apparatus and method for normalizing input data of acoustic model, speech recognition apparatus
US20190088365A1 (en) * 2016-03-01 2019-03-21 Sentimetrix, Inc Neuropsychological evaluation screening system
US10593349B2 (en) * 2016-06-16 2020-03-17 The George Washington University Emotional interaction apparatus
US10540990B2 (en) * 2017-11-01 2020-01-21 International Business Machines Corporation Processing of speech signals
US11264014B1 (en) * 2018-09-23 2022-03-01 Plantronics, Inc. Audio device and method of audio processing with improved talker discrimination
US11694708B2 (en) * 2018-09-23 2023-07-04 Plantronics, Inc. Audio device and method of audio processing with improved talker discrimination
WO2020183219A1 (en) * 2019-03-10 2020-09-17 Kardome Technology Ltd. Speech enhancement using clustering of cues
US11545172B1 (en) * 2021-03-09 2023-01-03 Amazon Technologies, Inc. Sound source localization using reflection classification

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148489A (en) * 1990-02-28 1992-09-15 Sri International Method for spectral estimation to improve noise robustness for speech recognition
FR2677828B1 (en) 1991-06-14 1993-08-20 Sextant Avionique METHOD FOR DETECTION OF A NOISE USEFUL SIGNAL.
US5323337A (en) 1992-08-04 1994-06-21 Loral Aerospace Corp. Signal detector employing mean energy and variance of energy content comparison for noise detection
GB9419388D0 (en) 1994-09-26 1994-11-09 Canon Kk Speech analysis
US6038528A (en) 1996-07-17 2000-03-14 T-Netix, Inc. Robust speech processing with affine transform replicated data
US6173258B1 (en) 1998-09-09 2001-01-09 Sony Corporation Method for reducing noise distortions in a speech recognition system
US6289309B1 (en) 1998-12-16 2001-09-11 Sarnoff Corporation Noise spectrum tracking for speech enhancement
FI19992350A (en) * 1999-10-29 2001-04-30 Nokia Mobile Phones Ltd Improved voice recognition
GB2355834A (en) * 1999-10-29 2001-05-02 Nokia Mobile Phones Ltd Speech recognition
GB2364814A (en) 2000-07-12 2002-02-06 Canon Kk Speech recognition
US20030004720A1 (en) 2001-01-30 2003-01-02 Harinath Garudadri System and method for computing and transmitting parameters in a distributed voice recognition system
US7035797B2 (en) * 2001-12-14 2006-04-25 Nokia Corporation Data-driven filtering of cepstral time trajectories for robust speech recognition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MOLAU S ET AL: "Histogram based normalization in the acoustic feature space", AUTOMATIC SPEECH RECOGNITION AND UNDERSTANDING, 2001. ASRU '01. IEEE WORKSHOP ON 9-13 DEC. 2001, PISCATAWAY, NJ, USA,IEEE, 9 December 2001 (2001-12-09), pages 21 - 24, XP010603668, ISBN: 0-7803-7343-X *

Also Published As

Publication number Publication date
AU2003223017A1 (en) 2003-11-17
US20030204398A1 (en) 2003-10-30
WO2003094154A1 (en) 2003-11-13
CN1650349A (en) 2005-08-03
EP1500087B1 (en) 2007-05-30
EP1500087A1 (en) 2005-01-26
ATE363712T1 (en) 2007-06-15
DE60314128D1 (en) 2007-07-12
US7197456B2 (en) 2007-03-27
DE60314128T2 (en) 2008-01-24

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